BTG file format description

Many people share .btg files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .btg file can be edited, converted or printed with. On this page, we try to provide assistance for handling .btg files.

1 filename extension(s) found in our database.

.btg - Binary TerraGear Data

The BTG game data files are related to FlightGear. The BTG file is a Binary TerraGear Data. It is a FlightGear terrain file. The FlightGear flight simulator is an open-source, multi-platform, cooperative flight simulator development project. BTG files contain geometry in the form of points, individual triangles, triangle strips and triangle fans.

Game Data files
- / -
Binary TerraGear Data related extensions:
Unreal Engine 3 Package
Scritter's Nest Game Level Data
Be-Music Script
Minecraft New Level Data Backup
SimCity City Data
Valve ICE Encoded Script

Naturally, other applications may also use the .btg file extension. Even harmful programs can create .btg files. Be especially cautious with .btg files coming from an unknown source!

Can't open a .btg file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .btg file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

bfg, bg, bgt, brg, bt, btb, btf, bth, btn, btr, btt, btv, bty, ftg, gtg

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Big Fish Games Application
ProjectWise User Settings
TuxGuitar Document
Btrieve Database
Warhammer: Dark Omen Map
AppleTalk Desktop Database

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

If you have useful information about the .btg file format, then write to us! >> BTG file